522 Proceedings of the OJiio Staie Academy of Science. 



H.- Pileus azonate; lamellae 4-10 

 mm. broad. S. 428; M. 184; 

 N. A. F. 180; P. R. 38: 121. 

 L. affinis Peck 

 G.- Pileus lurid to ash-gray or snuff- 

 brown. 

 11.^ Pileus usually more than 8 cm. 

 broad ; viscidity slimy, persist- 

 ent ; lamellae rather broad ; 

 stipe cream-yellow. S. 430; 

 M. 183; H. 170; P. R. 38: 

 120; N. A. F. 181; St. 2:98. 

 L. trivialis Fr. 

 FI.^ Pileus usually less than 8 cm. 

 broad ; viscidity thin, disap- 

 pearing; lamellae rather nar- 

 row ; stipe cinereous. S. 428 ; 

 M. 184; P. R. 38: 122; N. A. 

 F. 190; H. 173. 



L. cin-crea Peck 

 B.- Latex mild or only slightly acrid. 



C} Pileus ash-gray, somewhat viscid. . . .L. cinerea Peck 

 C." Pileus some shade of yellow or brown, dry. 



D.^ Lamellae distant ; pileus yellow to fulvous. S. 

 448; N. A. F. 196; P. R. 38: 129; H. 174; M 



184; Mc. 180 L. hygrophoroides B. & C, 



D.- Lamellae close. 



E.^ Pileus zonate ; fulvous to brownish. S. 449 ; 

 N. A. F. 176; St. 2: no. . .L. ichorata Fr. 

 E.- Pileus azonate. 



¥} Pileus glabrous. 



G.^ Flesk thick, becoming brownish on 

 exposure to air; stipe stout. S. 

 447 ;H. i78;P. R. 38:i3o;N. A. 

 F. T95; Mc. 180; A. 115; M. 184; 

 St. 2 : 109. 



L. volema Fr. 



L. lactifna (L.) Burl. 



